X-Git-Url: https://iankelling.org/git/?a=blobdiff_plain;f=README.md;h=13e8782d788596c3691cc800e078784ed1581870;hb=04261c1142b015c6995a1a635e5e8aa70bf873ca;hp=fe99c2928c66a2c8424fa367819c8a975543f058;hpb=d59682bd3edd893714f52694e82462747aee6655;p=evhz diff --git a/README.md b/README.md index fe99c29..13e8782 100644 --- a/README.md +++ b/README.md @@ -1,14 +1,23 @@ -evhz -==== +# evhz -Display the current mouse refresh rate under evdev linux system. +Show mouse refresh rate under linux + evdev -It is sufficient to simply download evhz.c vs cloning the repo. +For information about polling rate, see https://wiki.archlinux.org/index.php/Mouse_Polling_Rate -To compile and run: +Just do ./run (run is very short and readable). -gcc -o evhz evhz.c +Nonverbose mode = -n, but you probably don't want that. -sudo ./evhz -v +Reported average is for the last 64 samples, or as many as we have so far. -Bugs, patches, requests, etc. are welcome. +There exists a kernel bug for USB ports which use the uhci_hcd driver, +where a 1000 hz mouse will only read at 500hz, causing jittering: +https://bugzilla.kernel.org/show_bug.cgi?id=60586. A workaround is to +use USB ports that use the ehci-pci driver. + +Maintainer: Ian Kelling + +Bugs, patches, requests, feedback are welcome. + +Last tested 7/2016 on Debian testing. Still working great after several +years.